NPPES file of Aug 9, 2026

Fei-Shiuann Clarissa Yang, M.D.C.M.

Dermatology Physician · Boston, MA

Fei-Shiuann Clarissa Yang, M.D.C.M. is a dermatology physician with a practice address in Boston, Massachusetts, and NPI 1942273016, issued on Feb 9, 2006. Check the license (Massachusetts 227498, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942273016
Name
Fei-Shiuann Clarissa Yang
Credential
M.D.C.M.
Primary taxonomy
Dermatology Physician 207N00000X
License number
227498 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-5254
Enumerated
Feb 9, 2006
Record last updated
Jul 13, 2026
Medicare enrollment
Enrolled (PECOS I20061103000475); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 55 Fruit St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Fei-Shiuann Clarissa Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 227498
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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97% fewer Medicare Part D claims than the average dermatology physician in 2024

22 Medicare Part D claims for 15 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.

  1. Fei-Shiuann Yang22
  2. Specialty average797

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $85.94

1 payment: food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Fei-Shiuann Yang$85.94
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Pratt Med/surg Dermatology Associates IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dermatology Physician providers in Massachusetts

There are 627 dermatology physician records in Massachusetts.

Other dermatology physician records in Massachusetts

  1. Zainab AbbasWorcester, MA1609028000
  2. Christopher Adams, M.D.Boston, MA1871777615
  3. Adewunmi Adelaja, MD, PHDBoston, MA1396488615
  4. David Aghassi, MDWellesley, MA1285698936
  5. Abdul Ahmed, MDBoston, MA1417947516
  6. Ali Al-Haseni, M.D.Boston, MA1144751777
  7. Abdullah Alajaji, MDBoston, MA1356698351
  8. Rhoda Alani, M.D.Boston, MA1154385268
  9. Christina Alavian, M.D.Worcester, MA1356376461
  10. Lee Albert, MDMilford, MA1619974102

Common questions

What is Fei-Shiuann Clarissa Yang, M.D.C.M.'s NPI number?

Fei-Shiuann Clarissa Yang, M.D.C.M.'s National Provider Identifier (NPI) is 1942273016, issued on Feb 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Fei-Shiuann Clarissa Yang, M.D.C.M. located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-5254. Providers update this record themselves, so call before visiting.

How can I verify Fei-Shiuann Clarissa Yang, M.D.C.M.'s license?

NPPES lists Massachusetts license number 227498, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Fei-Shiuann Clarissa Yang, M.D.C.M. prescribe under Medicare Part D?

In 2024, Fei-Shiuann Clarissa Yang, M.D.C.M. had 22 Medicare Part D claims for 15 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.